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Dec 16, 2020 20:34:17 GMT
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My car is set up for a is200 6 speed gearbox, but i want to change the engine type. Now ic an get another is200 box for £100, and i want to adapt it to a duratec engine.
Now i know you can get adapters for rx8 boxes, but everyone seems to have either the box and no clutch arm, or stick, or they seem to want silly money for them. So i am thinking, for the £200-250 that id spend extra over the is200 box , could i adapt one myself to fit?
We have a cnc laser cutter at work, and i am thinking if i can get the dxf files if there are for the bellhousing pattens, i can merge them. Does anyone know if this info is available or how to go about doing this conversion? thanks!
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cb11acd
Part of things
Posts: 132
Club RR Member Number: 122
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making a gearbox adapter.cb11acd
@cb11acd
Club Retro Rides Member 122
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This video might help:
I doubt you will be able to just find the right DXF files, you may need to take measurments yourself.
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Dec 18, 2020 13:38:26 GMT
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I was going to suggest the same video. The guy is very skilled and explains well.
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Proton Jumbuck-deceased :-(
2005 Kia Sorento the parts hauling heap
V8 Humber Hawk
1948 Standard12 pickup SOLD
1953 Pop build (wifey's BIVA build).
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Dec 18, 2020 13:54:03 GMT
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MDF is great for proof of concept trials......
Easy to work and available in many thicknesses....
Nick
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1967 Triumph Vitesse convertible (old friend)
1996 Audi A6 2.5 TDI Avant (still durability testing)
1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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Dec 18, 2020 18:22:33 GMT
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Can you have the parts 3d scanned then overlay them to create an adaptor plate?
Especially with regard to getting the crank and gearbox input shaft bang in line.
I never really thought about it before and have seen plenty of homemade plates but on other threads people have pointed out that even slightly out of line and you will be putting massive loads on the engine and gearbox bearings leading to failure.
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Dec 18, 2020 18:51:33 GMT
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thanks for the replies.
well, having a chat with brother DarrrenW and he recons that if i take pics of the engine/box, then put it into his cad type program, and then cross reference to actual measurements we can get it really accurate. I thought id need a big scanner and then put the sizes onto that, but maybe not!
Then hopefully we can make a dxf file i can take it into work and get them to run it on the cnc laser.
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Dec 18, 2020 19:47:53 GMT
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If you do it that way make sure everything is bang on square to the camera, it's easy to add in some distortion by accident, a quick way of checking is to have known dimensions and keep comparing the photo dimensions to those.
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Dec 18, 2020 20:20:28 GMT
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And you will still need to centralise the input shaft, in the video he turned up a spacer, I used 4 equaly spaced steel shims.
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Dec 18, 2020 20:55:45 GMT
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thanks, the dimensions will be checked defo ...
the input shaft will be in the pic, i can just measure from the center of it to outer points.
this is all theory atm, but it worked for making an adapter for the mini i have for the Lada spi unit!
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melle
South West
It'll come out in the wash.
Posts: 1,983
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Dec 22, 2020 18:10:17 GMT
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Are both sides perhaps a standard SAE bolt pattern? As long as the holes for the locating pins are bang on in relation to the input shaft and the bolt holes are close enough, the accuracy of the rest of the shape doesn't matter that much I suppose. I would definitely follow vitesseefi 's advice and do a trial in MDF. |
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www.saabv4.com'70 Saab 96 V4 "The Devil's Own V4" '77 Saab 95 V4 van conversion project '88 Saab 900i 8V
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Dec 22, 2020 19:06:49 GMT
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We have a Mercedes 3L in an old Landrover its just roughly burn out from two bits of plate looks wibblepoo but works fine
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It will come in handy even if you never use it
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Dec 22, 2020 20:25:03 GMT
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ive thought about this now, and i went to buy a is200 box, and when i got there it was full of water! So, looked at the rx8 one again, and from what i gather, its only the output shaft that is the problem to me, but i may be able to swap a is200 one for the rx8 one, as in it may jsut clip on the end. then with the duratec the is200 clutch would have been too big, the rx8 takes the ford one i already have. so its just an adapter plate of the two welsh lads. thanks  |
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Dec 22, 2020 22:13:02 GMT
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doesn't the mx5 box bolt up?
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Dec 22, 2020 23:21:34 GMT
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well. aparently so, however, i think you need a mx5 flywheel and clutch, i think the starer is on the exhaust side then too, the engine in the mx5 is over by 10 degs, and also, they arnt £150, they are more like £350! everyone with fords wants them now it seems.
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Jan 13, 2021 21:49:42 GMT
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just watched teh vid, and watched part 2, i hadnt watched part 2 as i saw the first one and thought when he aligned to the crank with the roughly placed round blocks i thought it was a little rough. But now ive watched teh second part and saw the superglue part, i fancy a go.
as i say the mx5 boxes seem to be £350. The rx8 seems a little scarce too. The is200 is in the car so i don't have to adapt the prop which is different to the rx8/mx5, and the is200 box is maybe £130-150. Will price up having a go. thanks
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